A third man has been charged over an alleged decade-long fraud worth $100 million.

Melbourne accountant Robert Zaia, 49, appeared before the Melbourne Magistrates Court on Thursday, charged with the same 142 crimes as international poker player Bill Jordanou the day before.

The charges included obtaining a financial advantage, obtaining property by deception and conspiring to defraud.

Mr Zaia's accounting firm, Zaia Arthur & Associates, was at the centre of a police investigation into a decade-long scheme in which tens of millions of dollars were allegedly siphoned from clients' accounts using false documents.

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In 2012 a police raid of the firm's Scoresby office revealed hundreds of false documents allegedly used to make unauthorised bank transfers approved by a senior staff member at a suburban Commonwealth Bank branch.

The Lysterfield man, 49, was granted bail provided he reported to Rowville Police Station on Fridays, surrendered his passport and did not leave Australia.

Mr Zaia was also told not to contact prosecution witnesses - except for his sister and ex-wife - and not to "stalk" certain witnesses.

A number of witnesses had intervention orders against Mr Zaia, the court heard.

Bill Jordanou, who police said was a "financial advisor" for the firm, was released on bail on Wednesday.

One of his charges was conspiring to defraud with Mr Zaia, Scott Arthur, Wayne Collins and Frank Porcino.

Mr Porcino has also been charged over the scheme.

Mr Arthur and Mr Collins have not been charged.

Mr Jordanou and Mr Zaia will next appear in court for a committal mention on September 17.